HUUM CLIFF Mini Series 3.5kW Sauna Heater
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HUUM CLIFF Mini 3.5kW Electric Sauna Heater
The HUUM CLIFF Mini 3.5kW Electric Sauna Heater is a compact wall-mounted heater designed for small residential sauna rooms ranging from 106 to 177 cubic feet. Its slim, vertical design is intended for installations where space is limited, allowing for reduced clearance requirements when installed according to manufacturer specifications.
Manufactured in Estonia using stainless steel components, this heater is designed to accommodate a high volume of sauna stones relative to its size. The exposed stone configuration supports consistent heat distribution and steam production when used according to manufacturer guidelines.
Important: A compatible HUUM UKU control system and sauna stones (4 boxes required) are required for operation and are sold separately.
Key Features
- Wall-mounted electric sauna heater (3.5kW)
- Designed for sauna rooms from 106–177 cubic feet
- Compact vertical design for space-efficient installation
- Reduced safety clearance requirements
- Large stone capacity (approx. 132–133 lbs)
- Direct contact between heating elements and stones
- Internal air duct design
- Removable ribs for optimized stone placement
- Stainless steel construction
- Compatible with HUUM UKU control systems (sold separately)
- Designed, engineered, and manufactured in Estonia
To operate your HUUM CLIFF Mini heater, the following components are required. These items are sold separately and must be selected prior to installation.
-
Sauna Control System (Required)
HUUM UKU Wi-Fi Sauna Control -
Sauna Stones (Required)
HUUM Sauna Heater Stones — 4 boxes required
Approximately 132–133 lbs total required for proper operation. -
Recommended Sauna Rooms
Compatible with sauna rooms from 106–177 cubic feet. Suggested options:- SaunaLife Model X2 Indoor Sauna Kit — 1–2 person indoor sauna (125 cu ft)
What's Included
- HUUM CLIFF Mini 3.5kW Sauna Heater
- 2 Prop Blocks (for removal of sauna rib slats)
- Installation and Operation Manual
Technical Specifications
- Model: CLIFF Mini 3.5
- Power Output: 3.5kW
- Sauna Room Size: 106–177 cubic feet
- Voltage: 240V, Single Phase
- Amperage: 14.58 Amps
- Installation: Wall-mounted
- Material: Stainless steel
- Stone Capacity: Approx. 132–133 lbs
- Heater Weight: 33 lbs
- Shipping Weight (with stones): 165 lbs
- Dimensions: 10.6"W × 6.3"D × 38.4"H
- Country of Origin: Estonia
Not sure which model is right? Compare HUUM heaters below:
Compare HUUM Sauna Heaters
| Model | Type | Sauna Size | Stone Capacity | Best For |
|---|---|---|---|---|
| CLIFF Mini 3.5kW | Wall-mounted | 106–177 cu ft | ~132 lbs | Small home saunas |
| CLIFF 6kW | Floor-standing | 177–318 cu ft | ~165 lbs | Medium saunas |
| CLIFF 9kW | Floor-standing | 283–460 cu ft | ~165 lbs | Larger home saunas |
| CLIFF 11kW | Floor-standing | 354–566 cu ft | ~165 lbs | Large sauna rooms |
| DROP 6kW | Wall-mounted | 177–318 cu ft | ~122 lbs | Modern design saunas |
| DROP 9kW | Wall-mounted | 283–460 cu ft | ~122 lbs | High-end sauna setups |
All HUUM heaters require a compatible control system and sauna stones (sold separately). These components must be selected prior to installation.
Warranty
This product includes a limited 3-year residential warranty and a limited 1-year commercial warranty (excluding heating elements), provided by the manufacturer.
Resources
Important Notes
- Control system and sauna stones are required for operation and are sold separately
- Professional installation is recommended
- Heater, control system, and stones must be installed according to manufacturer guidelines
- For indoor sauna use only unless otherwise specified by the manufacturer
- Always follow manufacturer installation and safety guidelines
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